EP0061196A1 - Apparatus for attaching bottom stops to a slide fastener chain - Google Patents
Apparatus for attaching bottom stops to a slide fastener chain Download PDFInfo
- Publication number
- EP0061196A1 EP0061196A1 EP82102426A EP82102426A EP0061196A1 EP 0061196 A1 EP0061196 A1 EP 0061196A1 EP 82102426 A EP82102426 A EP 82102426A EP 82102426 A EP82102426 A EP 82102426A EP 0061196 A1 EP0061196 A1 EP 0061196A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pair
- cam
- fastener chain
- gripper
- bottom stop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/36—Means for permanently uniting the stringers at the end; Means for stopping movement of slider at the end
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
- A44B19/60—Applying end stops upon stringer tapes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/25—Zipper or required component thereof
- Y10T24/2598—Zipper or required component thereof including means for obstructing movement of slider
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49782—Method of mechanical manufacture of a slide fastener
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49782—Method of mechanical manufacture of a slide fastener
- Y10T29/49785—Method of mechanical manufacture of a slide fastener of interlocking element
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53291—Slide fastener
- Y10T29/53296—Means to assemble stop onto stringer
Definitions
- the present invention relates to the production of slide fasteners, and more particularly to a method of and an apparatus for attaching bottom stops to a slide fastener chain.
- bottom stops of a generally H-shaped cross section to a slide fastener chain having successive spaced pairs of opposed element-free or blank tape portions between successive spaced pairs of coupling element groups mounted on a pair of stringer tapes along beaded edges thereof; one bottom stop at a time is attached adjacent to the leading or trailing end of one of the successive pairs of coupling element groups.
- the H-shaped bottom stop has two pairs of gripping legs on opposite sides. For attachment, the beaded tape edges of an adjacent pair of opposed blank tape portions are threaded one through a space between the gripping legs of each pair, and the gripping legs of each pair are then simply clinched about a respective one of the beaded tape edges.
- a method of attaching bottom stops to a slide fastener chain including a pair of continuous stringers, each stringer having successive spaced groups of coupling elements mounted on a continuous stringer tape along a beaded edge thereof and interengaged with opposed complementary groups of coupling elements on the other stringer tape, the fastener chain having successive spaced pairs of opposed blank tape portions between the successive pairs of coupling element groups, each of the bottom stops having two pairs of gripping legs at opposite sides, said method comprising the steps of: moving the fastener chain longitudinally along a path in a predetermined direction; sensing the arrival of one of the successive spaced pairs of coupling element groups to terminate the movement of the fastener chain; then, spreading apart one of the successive pairs of opposed blank tape portions; placing one bottom stop at a fixed point between the spread pair of opposed blank tape portions; releasing the spread pair of opposed blank tape portions to thereby allow the same to come toward each other until the opposed beaded tape edges are threaded one through a space between each pair of
- an apparatus for attaching bottom stops to a slide fastener chain including a pair of continuous stringers, each stringer having successive spaced groups of coupling elements mounted on a continuous stringer tape along a beaded edge thereof and interengaged with opposed complementary groups of coupling elements on the other stringer tape, the fastener chain having successive spaced pairs of opposed blank tape portions between the successive pairs of coupling element groups, each of the bottom stops having two pairs of gripping legs at opposite sides, said apparatus comprising: a frame having a guide table for supporting thereon the fastener chain; means for moving the fastener chain longitudinally along a path over said guide table in a predetermined direction; means for sensing the arrival of one of the successive spaced pairs of coupling element groups to terminate the movement of the fastener chain; means responsive to said arrival for spreading apart one of the successive pairs of opposed blank tape portions; means for setting and retaining one bottom stop at a fixed point between the spread pair of opposed blank tape portions; said spreading means being responsive to said setting of said
- the present invention seeks to provide a method of attaching bottom stops of a generally H-shaped cross section to a slide fastener chain without projection of the beaded tape edges out of the inter-leg spaces of the individual bottom stops.
- the invention also seeks to provide a method of attaching bottom stops of a generally H-shaped cross section to a slide fastener chain with an increased degree of firmness.
- the invention further seeks to provide an apparatus for carrying out the method mentioned above.
- Figure 1 shows a slide fastener chain 1 to which a bottom stop 2 has been attached by the method and apparatus 3 ( Figure 14) according to the present invention.
- the slide fastener chain 1 includes a pair of continuous stringers 4,4, each stringer having successive spaced groups of coupling elements 5 mounted on a continuous stringer tape 6 along a beaded edge 8 thereof and interengaged with opposed complementary groups of coupling elements 5 on the other stringer tape 6, there being successive spaced pairs of opposed blank tape portions 7,7 between the successive spaced pairs of coupling element groups 5,5.
- the bottom stop 2 has two pairs of gripping legs 9,9;9,9 ( Figures 2, 10, 11, 12 and 13) at opposite sides.
- the apparatus 3 generally comprises a frame 11 having a guide table 12 for supporting thereon the fastener chain 1 along a horizontal path, a pair of feed rollers 13,14 and a guide roller 15 disposed downstream and upstream, respectively, of the guide table 12 for moving or feeding the fastener chain 1 longitudinally along the path over the guide table 12 in a predetermined direction, rightwardly in Figure 14, a feeler lever 16 disposed beneath the path and pivotable with respect to the guide table 12 for sensing the arrival of one of the successive pairs of coupling element groups 5,5 and for terminating the movement of the fastener chain 1 when a predetermined amount of movement has occurred after the sensing, a separator assembly 17 (described below) for separating or spreading apart an adjacent pair of opposed blank tape portions 7,7, and a bottom-stop setting and retaining assembly 18 including a coacting punch and die 19,20 ( Figures 10 - 15).
- the feeler lever 16 has an upwardly angled tip end 16a ( Figures 14 and 19) and is pivotable between an upper position in which the tip end 16a is inserted into a space between the opposed blank tape portions 7,7 of an adjacent pair, and a lower position in which the tip end 16a is retracted out of the path.
- the feeler lever 16 is also horizontally movable along the path between a first position where a tip end 16a is inserted into a space between the opposed blank tape portions 7,7 of an adjacent pair, and a second position where the movement of the fastener chain 1 is halted and then the tip end 16a is retracted out of the path.
- the separator assembly 17 includes a pair of grippers 21,21 carried on a pair of gripper holders 22,22, respectively, which are pivotally supported on the frame 11 by means of a pair of pins 22b,22b, respectively, and are disposed one on each side of the path of the fastener chain 1.
- Each gripper 21 has a pair of relatively movable grip members 23,23 for gripping one of the stringer tapes 6.
- the grip members 23,23 of each gripper 21 are pivotally mounted on a rear end 22a (left end in Figures. 14 and 16) of a respective one of the gripper holders 22.
- the two grippers 21,21 extend rearwardly convergently, each gripper 21 being the mirror image of the other with respect to the path, as shown in Figures 17, 19 and 21.
- the grippers 21,21 are, in response to pivotal movement of the gripper holders 22,22 as described below, movable between a "spreading" position ( Figures 4, 5 and 19) in which the grippers 21, 21 are spaced away from one another with a maximal distance therebetween, a "neutral" position ( Figures 3, 6, 7, 9 and 17) in which the grippers 21,21 are spaced apart from one another with an intermediate distance therebetween, and a “compressing" position ( Figures 8 and 21) in which the grippers 21,21 are close to one another with a minimal distance therebetween.
- the cam plate 24 has a pair of cam surfaces 25,25 each having a first, a second and a third cam portion 25a,25b,25c (described below).
- a pair of rollers 26,26 is carried one on each gripper holder 22 and is urged against the cam surfaces 25,25 by a pair of compression springs 27,27, respectively, each spring 27 being mounted between the frame 11 and a respective one of the gripper holders 22.
- the cam plate 24 is mounted on a rack 28 disposed between the gripper holders 22,22 and meshing with a toothed wheel 29 ( Figure 18) mounted on a shaft 30.
- the shaft 30 is operatively connected to an actuator rod 31 with a crank 32, as better shown in Figures 14, 16, 18 and 22.
- the actuator rod 31 is vertically movable to turn the shaft 30 and thus the toothed wheel 29 through a predetermined angle, thus causing the rack 28 to move longitudinally between the position of Figure 19 and the position of Figure 21 via the position of Figure 17.
- the rollers 26,26 of the gripper holders 22,22 roll along the cam surface 25,25, respectively, from the first cam portion 25a to the third cam portion 25c via the second cam portion 25b while the rack 28 is moved from the position of Figure 21 to the position of Figure 19 via the position of Figure 17.
- the grippers 21,21 are moved from the "compressing" position to the "spreading" position via the "neutral" position.
- each gripper 21 The closing and opening of the opposed grip members 23,23 of each gripper 21 is controlled as follows. As shown in Figures 14, 16 and 22, the grip members 23,23 are normally urged to close by a pair of leaf springs 57,57 and have a pair of opposed hemispherical projections 23a,23a at respective outer ends, which is in engagement with a cam bar 33 on its tapering end 33a.
- the cam bar 33 is slidably carried by a wing 34 of a respective one of the gripper holders 22 and is movable between an advanced position in which the grip members 23,23 are closed, and a retracted position in which the grip members 23,23 are opened.
- the cam bar 33 is normally urged to move rightwardly in Figures 14, 16 and 22 by a compression spring 35 ( Figures 17, 19 and 21). Such rightward movement of the cam bar 33 is restricted by a stop 36 adjustably supported by a bracket 37 fixed to the frame 11.
- the stop 36 is normally urged against the cam bar 33 by a compression spring 38 of which biasing force is greater than that of the spring 35.
- the stop 36 serves to push the cam bar 33 to its advanced position when the gripper holder 22 is pivotally moved to the "spreading" position.
- a pushing bar 39 for pushing the cam member 33 to the advanced position against the biasing force of the spring 35.
- An actuator lever 40 is pivotally mounted on the frame 11 and is pivotable between a "closing” position in which the pushing bar 39 and thus the cam bar 33 are moved to the advanced position, and an "opening" position in which the pushing bar 39 and thus the cam bar 33 are allowed to come back to the retracted position.
- the actuator lever 40 is normally urged to pivot counterclockwise in Figures 14, 16 and 22 by a leaf spring 41.
- a roller 42 on the actuator lever 40 is urged against a cam sector 43 mounted on the shaft 30 (figure 18), the cam sector 43 having a minor-diameter portion 43a and a major-diameter portion 43b.
- the roller 42 rolls along the minor- and major-diameter cam portions 43a,43b as the shaft 30 is turned through an angle in response to the vertical movement of the actuator rod 31.
- one of the feed rollers 13 is a drive roller adapted to be driven for rotation at a constant speed.
- the other roller 14 is an idle roller mounted on an arm 45 pivotally supported on the frame 11.
- the idle roller 14 is movable toward and away from the drive roller 13 in response to the pivotal movement of the arm 45.
- the arm 45 is, in response to the arrival of one of the successive pairs of coupling element groups 5,5, pivotable clockwise to cause the idle roller 14 to move away from the drive roller 13, thereby relaxing the fastener chain 1 so that an adjacent pair of opposed blank tape portions 7,7 is spread apart without disengagement of the adjacent coupling elements 5,5.
- the bottom-stop setting and retaining assembly 18, as shown in Figure 14, comprises a chute 46 for carrying a succession of the bottom stops 2, and a holder 47 for receiving one bottom stop 2 at a time from the chute 46 and for then delivering the bottom stop 2 to a fixed point at which it is to be attached to the fastener chain 1.
- the holder 47 is supported by a rocking body 48 which is movable between a tilted position (phantom lines) in which one of the bottom stops 2 is transferred from the chute 46 to the holder 47, and a vertical position (solid lines) in which the bottom stop 2 is set at a fixed point, as described below.
- the holder 47 includes a pair of clamping arms 49,49 pivotally supported by a slide 50 slidably received in a bore 51 extending longitudinally of the rocking body 48.
- the punch 19 is slidably received in a longitudinal slot 52 of the slide 50 and extends beyond a free end of the rocking body 48.
- the clamping arms 49,49 extends normally beyond the punch 19 so as to define therewith a pocket 54 for receiving a bottom stop 2 having discharged from the chute 46.
- the clamping arms 49,49 are disposed one on each side of the punch 19 and are normally urged toward one another at their tip ends by a compression spring 53 for resiliently hold the bottom stop 2 in the pocket 54.
- the punch 19 has a pair of shoulders 19a,19a which is engageable with a pair of projections 49a,49a on the clamping arms 49,49, respectively, when the punch 19 is downwardly moved to project beyond the tip ends of the clamping arms 49,49 for forcing the bottom stop 2 out of the pocket 54 and for then retaining the same at the fixed point in cooperation with the die 20.
- the die 20 is upwardly movable from beneath the path of the fastener chain 1, in timed relation with the downward movement of the punch 19, toward the fixed point.
- a ram (not shown) is disposed above the punch 19 and is downwardly movable to force the punch 19 toward the die 20 for clinching each pair of gripping legs 9,9 (FIGS. 2, 10, 11 and 12) of the bottom stop 2 about the beaded tape edge 8 of a respective one of the stringer tapes 6.
- a slide fastener chain 1 ( Figure 1) is moved forwardly or rightwardly along the path through the apparatus 3 ( Figure 14) via the guide roller 15 by the feed rollers 13,14.
- the feeler lever 16 is raised to cause the tip end 16a to project into a space between the opposed blank tape portions 7,7 of an adjacent pair.
- One of the successive pairs of coupling element groups 5,5 then comes into engagement with the tip end 16a of the feeler lever 16.
- the feeler lever 16 With the tip end 16a in engagement with the leading end of one of the successive pairs of coupling element groups 5,5, the feeler lever 16 travels forwardly and stops when a predetermined amount of travel has occurred after the arrival of one of the successive pairs of coupling element groups 5,5.
- the movement of the fastener chain 1 is thus halted ( Figure 3). After that, the feeler lever 16 is lowered to retract the tip end 16a out of the path.
- the actuator rod 31 is moved downwardly to cause the shaft 30 and the toothed wheel 29 (Figure 18) to turn counterclockwise ( Figures 14 and 16) through an angle.
- the rack 28 with the cam member 24 is thus moved from the position of Figure 17 to the Figure position of .19, during which time the rollers 26,26 roll from the second cam portions 25b onto the third cam portions 25c,25c, causing the grippers 21,21 to move from the "neutral" position to the "spreading" position.
- the cam bars 33,33 are pushed by the stops 36,36 to the advanced position to cause the grip members 23,23 of each gripper 21 to grip a respective one of the stringer tapes 6.
- the opposed blank tape portions 7,7 of an adjacent pair are spread apart ( Figure 4) to such an extent that a bottom stop 2 to be attached to the fastener chain 1 can be set at the fixed point between the opposed blank tape portions 7,7, as described below.
- the idle roller 14 is out of engagement with the drive roller 13 to relax the fastener chain 1 so that an adjacent pair of opposed blank tape portions 7,7 is spread apart without disengagement of the coupling elements 5,5 adjacent thereto.
- the rocking body 48 with a bottom stop 2 held by the holder 47 is pivotally moved from a tilted position (phantom lines in Figure 14) to a vertical position (solid lines in Figure 14).
- the holder 47 along with the punch 19 is then downwardly moved toward a fixed point between the spread pair of opposed blank tape portions 7,7.
- the die 20 is upwardly moved to retain the bottom stop 2 at the fixed point in cooperation with the punch 19, as illustrated in Figure 5.
- the bottom stop 2 is set in such a posture that a space between the gripping legs 9,9 of each pair is opposed to a respective one of the beaded tape edges 8, as shown in Figure 10.
- a bottom stop guide plate 55 ( Figures 5 - 9 and 14) is lowered along with the bottom stop 2.
- the actuator rod 31 is then upwardly moved to turn the shaft 30 and thus the toothed wheel 29 clockwise ( Figures 14 and 16) through an angle, causing the rack 28 and the cam member 24 to move from the position of Figure 19 to the position of Figure 17.
- the rollers 26,26 on the gripper holders 22,22 roll from the third cam portions 25c,25c onto the second cam portions 25b,25b to cause the gripper holders 22,22 with the grippers 21,21 to pivotally move to the "neutral" position, thus allowing the cam bars 33,33 to move to its retracted position.
- a coupling- element stop finger 56 ( Figures 6 - 9, 19 and 20) is locatable adjacent to the bottom stop 2 in transverse alignment with the endmost coupling element 5a ( Figure 7) so that the bottom stop 2 is kept in proper posture for correct attachment to the fastener chain 1, the stop finger 56 having a cutout 56a.
- each gripper 21 The grip members 23,23 of each gripper 21 are thus closed to grip the opposed blank tape portions 7,7.
- the beaded tape edges 8,8 are forced or compressed against the bottom stop 2 on opposite sides ( Figures 8 and 12), during which time the bottom stop guide plate 55 is disposed between the beaded tape edges 8,8 so that the latter are prevented from being tilted with respect to the bottom stop 2.
Abstract
Description
- The present invention relates to the production of slide fasteners, and more particularly to a method of and an apparatus for attaching bottom stops to a slide fastener chain.
- In the slide fastener industry, it is known to attach bottom stops of a generally H-shaped cross section to a slide fastener chain having successive spaced pairs of opposed element-free or blank tape portions between successive spaced pairs of coupling element groups mounted on a pair of stringer tapes along beaded edges thereof; one bottom stop at a time is attached adjacent to the leading or trailing end of one of the successive pairs of coupling element groups. The H-shaped bottom stop has two pairs of gripping legs on opposite sides. For attachment, the beaded tape edges of an adjacent pair of opposed blank tape portions are threaded one through a space between the gripping legs of each pair, and the gripping legs of each pair are then simply clinched about a respective one of the beaded tape edges. The major problem with the prior art is that the element-free beaded tape edges, which usually bulge especially at portions adjacent to the coupling element groups, tend to objectionably project out of the inter-leg spaces of the individual bottom stops when the latter are attached. With the prior art, proper and firm attachment of bottom stops to a slide fastener chain is difficult to achieve. Further, the resultant slide fastener are unpleasant in appearance.
- According to a first aspect of the invention, there is provided a method of attaching bottom stops to a slide fastener chain including a pair of continuous stringers, each stringer having successive spaced groups of coupling elements mounted on a continuous stringer tape along a beaded edge thereof and interengaged with opposed complementary groups of coupling elements on the other stringer tape, the fastener chain having successive spaced pairs of opposed blank tape portions between the successive pairs of coupling element groups, each of the bottom stops having two pairs of gripping legs at opposite sides, said method comprising the steps of: moving the fastener chain longitudinally along a path in a predetermined direction; sensing the arrival of one of the successive spaced pairs of coupling element groups to terminate the movement of the fastener chain; then, spreading apart one of the successive pairs of opposed blank tape portions; placing one bottom stop at a fixed point between the spread pair of opposed blank tape portions; releasing the spread pair of opposed blank tape portions to thereby allow the same to come toward each other until the opposed beaded tape edges are threaded one through a space between each pair of the gripping legs of said one bottom stop; with said one bottom stop retained at said fixed point, further moving the fastener chain along the path in said predetermined direction until leading endmost coupling elements of said one pair of coupling element groups reach said one bottom stop; and finally, clinching each pair of the gripping legs of said one bottom stop about the beaded tape edge of a respective one of the stringers; CHARACTERIZED in that said method further comprises the step of compressing, in response to said reaching, the threaded beaded tape edges against said one bottom stop on opposite sides.
- According to a second aspect of the invention, there is provided an apparatus for attaching bottom stops to a slide fastener chain including a pair of continuous stringers, each stringer having successive spaced groups of coupling elements mounted on a continuous stringer tape along a beaded edge thereof and interengaged with opposed complementary groups of coupling elements on the other stringer tape, the fastener chain having successive spaced pairs of opposed blank tape portions between the successive pairs of coupling element groups, each of the bottom stops having two pairs of gripping legs at opposite sides, said apparatus comprising: a frame having a guide table for supporting thereon the fastener chain; means for moving the fastener chain longitudinally along a path over said guide table in a predetermined direction; means for sensing the arrival of one of the successive spaced pairs of coupling element groups to terminate the movement of the fastener chain; means responsive to said arrival for spreading apart one of the successive pairs of opposed blank tape portions; means for setting and retaining one bottom stop at a fixed point between the spread pair of opposed blank tape portions; said spreading means being responsive to said setting of said one bottom stop for releasing the spread pair of opposed blank tape portions to thereby allow the same to come toward each other until the opposed beaded tape edges are threaded one through a space between each pair of the gripping legs of said one bottom stop retained at said fixed point; said moving means being responsive to said threading for further moving the fastener chain along the path in said predetermined direction until leading endmost coupling elements of said one pair of coupling element groups reach said one bottom stop retained at said fixed point; and said setting and retaining means being responsive to the completion of said further moving completion for clinching each pair of gripping legs of said one bottom stop about the beaded tape edge of a respective one of the stringers; CHARACTERIZED in that said spreading means is responsive to said reaching for compressing the threaded beaded tape edges against said one bottom stop on opposite sides.
- The present invention seeks to provide a method of attaching bottom stops of a generally H-shaped cross section to a slide fastener chain without projection of the beaded tape edges out of the inter-leg spaces of the individual bottom stops.
- The invention also seeks to provide a method of attaching bottom stops of a generally H-shaped cross section to a slide fastener chain with an increased degree of firmness.
- The invention further seeks to provide an apparatus for carrying out the method mentioned above.
- Many other advantages, features and additional objects of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying drawings in which a preferred embodiment incorporating the principles of the present invention is shown by way of illustrative example.
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- Figure 1 is a fragmentary plan view of a slide fastener chain to which a bottom stop has been attached in accordance with the present invention;
- Figure 2 is an enlarged perspective view of a bottom stop to be attached to the fastener chain;
- Figure 3 through Figure 9 illustrate a sequence of steps of a method according to the present invention;
- Figure 10 is an enlarged fragmentary cross-sectional view corresponding to Figure 5;
- Figure 11 is an enlarged fragmentary cross-sectional view corresponding to Figures 6 and 7;
- Figure 12 is an enlarged fragmentary cross-sectional view corresponding to Figure 8;
- Figure 13 is an enlarged fragmentary cross-sectional view corresponding to Figure 9;
- Figure 14 is a side elevational view, with parts broken away, of an apparatus for carrying out the method;
- Figure 15 is an enlarged cross-sectional view taken along line XV - XV of Figure 14;
- Figure 16 is an enlarged side elevational view of a pair of grippers and a drive mechanism therefore
- Figure 17 is a plan view corresponding to Figure 16;
- Figure 18 is a cross-sectional view taken along line XVIII - XVIII of Figure 17;
- Figure 19 is a view similar to Figure 17, showing the grippers in their position as they are away from each other;
- Figure 20 is a side elevational view of a coupling- element stopping finger;
- Figure 21 is a view similar to Figure 19, showing the grippers in their position as they are close to each other; and
- Figure 22 is a side elevational view corresponding to Figure 21.
- Figure 1 shows a
slide fastener chain 1 to which abottom stop 2 has been attached by the method and apparatus 3 (Figure 14) according to the present invention. - The
slide fastener chain 1 includes a pair ofcontinuous stringers coupling elements 5 mounted on acontinuous stringer tape 6 along abeaded edge 8 thereof and interengaged with opposed complementary groups ofcoupling elements 5 on theother stringer tape 6, there being successive spaced pairs of opposedblank tape portions coupling element groups bottom stop 2 has two pairs ofgripping legs - As shown in Figure 14, the
apparatus 3 generally comprises aframe 11 having a guide table 12 for supporting thereon thefastener chain 1 along a horizontal path, a pair offeed rollers guide roller 15 disposed downstream and upstream, respectively, of the guide table 12 for moving or feeding thefastener chain 1 longitudinally along the path over the guide table 12 in a predetermined direction, rightwardly in Figure 14, afeeler lever 16 disposed beneath the path and pivotable with respect to the guide table 12 for sensing the arrival of one of the successive pairs ofcoupling element groups fastener chain 1 when a predetermined amount of movement has occurred after the sensing, a separator assembly 17 (described below) for separating or spreading apart an adjacent pair of opposedblank tape portions assembly 18 including a coacting punch and die 19,20 (Figures 10 - 15). - The
feeler lever 16 has an upwardlyangled tip end 16a (Figures 14 and 19) and is pivotable between an upper position in which thetip end 16a is inserted into a space between the opposedblank tape portions tip end 16a is retracted out of the path. Thefeeler lever 16 is also horizontally movable along the path between a first position where atip end 16a is inserted into a space between the opposedblank tape portions fastener chain 1 is halted and then thetip end 16a is retracted out of the path. - As shown in Figures 14, 16, 17 and 18, the
separator assembly 17 includes a pair ofgrippers gripper holders frame 11 by means of a pair ofpins fastener chain 1. Eachgripper 21 has a pair of relativelymovable grip members stringer tapes 6. Thegrip members gripper 21 are pivotally mounted on arear end 22a (left end in Figures. 14 and 16) of a respective one of thegripper holders 22. The twogrippers gripper 21 being the mirror image of the other with respect to the path, as shown in Figures 17, 19 and 21. Thegrippers gripper holders grippers grippers grippers - Such movement of the
grippers cam plate 24 has a pair ofcam surfaces third cam portion rollers gripper holder 22 and is urged against thecam surfaces compression springs spring 27 being mounted between theframe 11 and a respective one of thegripper holders 22. Thecam plate 24 is mounted on arack 28 disposed between thegripper holders shaft 30. Theshaft 30 is operatively connected to anactuator rod 31 with acrank 32, as better shown in Figures 14, 16, 18 and 22. Theactuator rod 31 is vertically movable to turn theshaft 30 and thus thetoothed wheel 29 through a predetermined angle, thus causing therack 28 to move longitudinally between the position of Figure 19 and the position of Figure 21 via the position of Figure 17. Therollers gripper holders cam surface first cam portion 25a to thethird cam portion 25c via thesecond cam portion 25b while therack 28 is moved from the position of Figure 21 to the position of Figure 19 via the position of Figure 17. During that time, thegrippers - The closing and opening of the
opposed grip members gripper 21 is controlled as follows. As shown in Figures 14, 16 and 22, thegrip members leaf springs hemispherical projections cam bar 33 on its taperingend 33a. Thecam bar 33 is slidably carried by awing 34 of a respective one of thegripper holders 22 and is movable between an advanced position in which thegrip members grip members cam bar 33 is normally urged to move rightwardly in Figures 14, 16 and 22 by a compression spring 35 (Figures 17, 19 and 21). Such rightward movement of thecam bar 33 is restricted by astop 36 adjustably supported by abracket 37 fixed to theframe 11. Thestop 36 is normally urged against thecam bar 33 by acompression spring 38 of which biasing force is greater than that of thespring 35. Thestop 36 serves to push thecam bar 33 to its advanced position when thegripper holder 22 is pivotally moved to the "spreading" position. Also supported by thebracket 37 is a pushingbar 39 for pushing thecam member 33 to the advanced position against the biasing force of thespring 35. Anactuator lever 40 is pivotally mounted on theframe 11 and is pivotable between a "closing" position in which the pushingbar 39 and thus thecam bar 33 are moved to the advanced position, and an "opening" position in which the pushingbar 39 and thus thecam bar 33 are allowed to come back to the retracted position. Theactuator lever 40 is normally urged to pivot counterclockwise in Figures 14, 16 and 22 by aleaf spring 41. Thus aroller 42 on theactuator lever 40 is urged against acam sector 43 mounted on the shaft 30 (figure 18), thecam sector 43 having a minor-diameter portion 43a and a major-diameter portion 43b. Theroller 42 rolls along the minor- and major-diameter cam portions shaft 30 is turned through an angle in response to the vertical movement of theactuator rod 31. - As shown in Figure 14, one of the
feed rollers 13 is a drive roller adapted to be driven for rotation at a constant speed. Theother roller 14 is an idle roller mounted on anarm 45 pivotally supported on theframe 11. Theidle roller 14 is movable toward and away from thedrive roller 13 in response to the pivotal movement of thearm 45. Thearm 45 is, in response to the arrival of one of the successive pairs ofcoupling element groups idle roller 14 to move away from thedrive roller 13, thereby relaxing thefastener chain 1 so that an adjacent pair of opposedblank tape portions adjacent coupling elements - The bottom-stop setting and retaining
assembly 18, as shown in Figure 14, comprises achute 46 for carrying a succession of the bottom stops 2, and aholder 47 for receiving onebottom stop 2 at a time from thechute 46 and for then delivering thebottom stop 2 to a fixed point at which it is to be attached to thefastener chain 1. Theholder 47 is supported by a rockingbody 48 which is movable between a tilted position (phantom lines) in which one of the bottom stops 2 is transferred from thechute 46 to theholder 47, and a vertical position (solid lines) in which thebottom stop 2 is set at a fixed point, as described below. - As shown in Figure 15, the
holder 47 includes a pair of clampingarms bore 51 extending longitudinally of the rockingbody 48. Thepunch 19 is slidably received in alongitudinal slot 52 of the slide 50 and extends beyond a free end of the rockingbody 48. The clampingarms punch 19 so as to define therewith apocket 54 for receiving abottom stop 2 having discharged from thechute 46. The clampingarms punch 19 and are normally urged toward one another at their tip ends by acompression spring 53 for resiliently hold thebottom stop 2 in thepocket 54. Thepunch 19 has a pair ofshoulders projections arms punch 19 is downwardly moved to project beyond the tip ends of the clampingarms bottom stop 2 out of thepocket 54 and for then retaining the same at the fixed point in cooperation with thedie 20. At that time thedie 20 is upwardly movable from beneath the path of thefastener chain 1, in timed relation with the downward movement of thepunch 19, toward the fixed point. A ram (not shown) is disposed above thepunch 19 and is downwardly movable to force thepunch 19 toward thedie 20 for clinching each pair ofgripping legs 9,9 (FIGS. 2, 10, 11 and 12) of thebottom stop 2 about thebeaded tape edge 8 of a respective one of thestringer tapes 6. - In operation, a slide fastener chain 1 (Figure 1) is moved forwardly or rightwardly along the path through the apparatus 3 (Figure 14) via the
guide roller 15 by thefeed rollers coupling element groups feeler lever 16 is raised to cause thetip end 16a to project into a space between the opposedblank tape portions coupling element groups tip end 16a of thefeeler lever 16. With thetip end 16a in engagement with the leading end of one of the successive pairs ofcoupling element groups feeler lever 16 travels forwardly and stops when a predetermined amount of travel has occurred after the arrival of one of the successive pairs ofcoupling element groups fastener chain 1 is thus halted (Figure 3). After that, thefeeler lever 16 is lowered to retract thetip end 16a out of the path. - Substantially concurrently with the termination of movement of the
fastener chain 1, theactuator rod 31 is moved downwardly to cause theshaft 30 and the toothed wheel 29 (Figure 18) to turn counterclockwise (Figures 14 and 16) through an angle. Therack 28 with thecam member 24 is thus moved from the position of Figure 17 to the Figure position of .19, during which time therollers second cam portions 25b onto thethird cam portions grippers stops grip members stringer tapes 6. As a result, the opposedblank tape portions bottom stop 2 to be attached to thefastener chain 1 can be set at the fixed point between the opposedblank tape portions idle roller 14 is out of engagement with thedrive roller 13 to relax thefastener chain 1 so that an adjacent pair of opposedblank tape portions coupling elements - Until after the opposed
blank tape portions grippers body 48 with abottom stop 2 held by theholder 47 is pivotally moved from a tilted position (phantom lines in Figure 14) to a vertical position (solid lines in Figure 14). Theholder 47 along with thepunch 19 is then downwardly moved toward a fixed point between the spread pair of opposedblank tape portions die 20 is upwardly moved to retain thebottom stop 2 at the fixed point in cooperation with thepunch 19, as illustrated in Figure 5. At that time, thebottom stop 2 is set in such a posture that a space between thegripping legs bottom stop 2, a bottom stop guide plate 55 (Figures 5 - 9 and 14) is lowered along with thebottom stop 2. - The
actuator rod 31 is then upwardly moved to turn theshaft 30 and thus thetoothed wheel 29 clockwise (Figures 14 and 16) through an angle, causing therack 28 and thecam member 24 to move from the position of Figure 19 to the position of Figure 17. At that time, therollers gripper holders third cam portions second cam portions gripper holders grippers grip members gripper 21 are opened to release the spread pair of opposedblank tape portions fastener chain 1, until the opposed beaded tape edges 8,8 are threaded one through a space between each pair of thegripping legs bottom stop 2, as shown in Figures 6 and 11. - With the beaded tape edges 8,8 threaded through the
bottom stop 2, thefastener chain 1 is further moved forwardly until the leading end of one of the successive pairs ofcoupling element groups bottom stop 2, as shown in Figure 7. At that time, a coupling- element stop finger 56 (Figures 6 - 9, 19 and 20) is locatable adjacent to thebottom stop 2 in transverse alignment with theendmost coupling element 5a (Figure 7) so that thebottom stop 2 is kept in proper posture for correct attachment to thefastener chain 1, thestop finger 56 having acutout 56a. - With continued upward movement of the
actuator rod 31 in Figures 14 and 16, theshaft 30 with thetooth wheel 29 is further turned clockwise through an angle, thus causing therack 28 with thecam member 24 to move from the position of Figure 17 to the position of Figure 21. At that time, therollers second cam portions first cam portions grippers cam sector 43 also is turned through the same angle until theroller 42 of theactuator lever 40 comes into engagement with the minor-diameter portion 43a, as shown in Figure 22. Thus theactuator lever 40 is pivotally moved to the "closing" position, pushing the pushingbar 39 and thecam bar 33 to their advanced position. Thegrip members gripper 21 are thus closed to grip the opposedblank tape portions bottom stop 2 on opposite sides (Figures 8 and 12), during which time the bottomstop guide plate 55 is disposed between the beaded tape edges 8,8 so that the latter are prevented from being tilted with respect to thebottom stop 2. - Finally, the
punch 19 is further lowered by a ram (not shown) to clinch each pair of thegripping legs bottom stop 2 about thebeaded tape edge 8 of a respective one of thestringer tapes 6, as shown in Figures 9 and 13.
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP42625/81 | 1981-03-24 | ||
JP56042625A JPS5951818B2 (en) | 1981-03-24 | 1981-03-24 | Slide fastener bottom stop installation method and device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0061196A1 true EP0061196A1 (en) | 1982-09-29 |
EP0061196B1 EP0061196B1 (en) | 1985-06-19 |
Family
ID=12641195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82102426A Expired EP0061196B1 (en) | 1981-03-24 | 1982-03-24 | Apparatus for attaching bottom stops to a slide fastener chain |
Country Status (12)
Country | Link |
---|---|
US (1) | US4433478A (en) |
EP (1) | EP0061196B1 (en) |
JP (1) | JPS5951818B2 (en) |
KR (1) | KR840001334B1 (en) |
AU (1) | AU531628B2 (en) |
BR (1) | BR8201675A (en) |
CA (1) | CA1198583A (en) |
DE (2) | DE3264224D1 (en) |
ES (1) | ES510679A0 (en) |
GB (1) | GB2095325B (en) |
HK (1) | HK67788A (en) |
MY (1) | MY8700433A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0161647A2 (en) * | 1984-05-18 | 1985-11-21 | Yoshida Kogyo K.K. | Apparatus for attaching boxes to slide fasteners with separable box and pin of synthetic resin |
CN101731797B (en) * | 2008-11-27 | 2012-05-23 | Ykk株式会社 | Zipper teeth chain continuous making machine |
AT13288U1 (en) * | 2011-04-29 | 2013-10-15 | Coats Opti Germany Gmbh | Finishing cap for making dividable zippers |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4495686A (en) * | 1983-01-17 | 1985-01-29 | Yoshida Kogyo K. K. | Apparatus for producing slide fasteners from continuous fastener chain |
US4545118A (en) * | 1983-01-17 | 1985-10-08 | Yoshida Kogyo K. K. | Apparatus for producing slide fasteners from continuous fastener chain |
JPS6173602A (en) * | 1984-09-18 | 1986-04-15 | ワイケイケイ株式会社 | Attachment of opening,inlay and instert jig in slide fastener |
DE3712402C1 (en) * | 1987-04-11 | 1988-09-29 | Opti Patent Forschung Fab | Device for placing metallic initial parts on a continuous zipper chain |
JPH0744886B2 (en) * | 1989-08-31 | 1995-05-17 | ワイケイケイ株式会社 | Bottom fastener mounting device for slide fasteners |
EP2363035B1 (en) * | 2010-03-01 | 2013-01-02 | Riri Sa | Bottom end stop for a slide fastener |
CN103960835B (en) * | 2014-05-23 | 2016-08-17 | 福建浔兴拉链科技股份有限公司 | I-shaped structure of zipper mounting process and positioner |
CN103976527B (en) * | 2014-05-23 | 2016-03-30 | 福建浔兴拉链科技股份有限公司 | I-shaped structure of zipper kludge |
CN108236165B (en) * | 2016-12-27 | 2020-11-10 | Ykk株式会社 | Rear stop part mounting device |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2732000A (en) * | 1956-01-24 | Levine | ||
US3217670A (en) * | 1964-06-04 | 1965-11-16 | Arthur E Struensee | Article support and clothes hanger |
US3234637A (en) * | 1964-09-24 | 1966-02-15 | Slide O Matic Corp | Method and apparatus for the assembly of slide fasteners |
GB2005762A (en) * | 1977-10-06 | 1979-04-25 | Yoshida Kogyo Kk | Apparatus for automatically applying top end stops to a sliding clasp fastener chain |
FR2409719A1 (en) * | 1977-11-25 | 1979-06-22 | Yoshida Kogyo Kk | PROCESS AND APPARATUS FOR FIXING UPPER STOPS TO A SLIP CHAIN |
FR2413305A1 (en) * | 1977-12-30 | 1979-07-27 | Yoshida Kogyo Kk | DEVICE FOR SPREADING A PAIR OF RIBBONS FROM ONE ANOTHER |
GB2022684A (en) * | 1978-05-02 | 1979-12-19 | Yoshida Kogyo Kk | Apparatus for applying end stops to sliding clasp fasteners |
FR2449419A1 (en) * | 1979-02-24 | 1980-09-19 | Yoshida Kogyo Kk | APPARATUS FOR APPLYING PARTS OF A REINFORCEMENT FILM TO A PAIR OF ZIPPER HANGING STRAPS |
EP0030707A1 (en) * | 1979-12-14 | 1981-06-24 | Yoshida Kogyo K.K. | Apparatus for attaching sliders and top end stops for slide fasteners |
-
1981
- 1981-03-24 JP JP56042625A patent/JPS5951818B2/en not_active Expired
-
1982
- 1982-03-17 AU AU81600/82A patent/AU531628B2/en not_active Ceased
- 1982-03-17 KR KR8201141A patent/KR840001334B1/en active
- 1982-03-23 BR BR8201675A patent/BR8201675A/en not_active IP Right Cessation
- 1982-03-23 US US06/360,932 patent/US4433478A/en not_active Expired - Fee Related
- 1982-03-23 ES ES510679A patent/ES510679A0/en active Granted
- 1982-03-23 CA CA000399173A patent/CA1198583A/en not_active Expired
- 1982-03-24 EP EP82102426A patent/EP0061196B1/en not_active Expired
- 1982-03-24 GB GB8208590A patent/GB2095325B/en not_active Expired
- 1982-03-24 DE DE8282102426T patent/DE3264224D1/en not_active Expired
- 1982-03-24 DE DE198282102426T patent/DE61196T1/en active Pending
-
1987
- 1987-12-30 MY MY433/87A patent/MY8700433A/en unknown
-
1988
- 1988-09-01 HK HK677/88A patent/HK67788A/en unknown
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2732000A (en) * | 1956-01-24 | Levine | ||
US3217670A (en) * | 1964-06-04 | 1965-11-16 | Arthur E Struensee | Article support and clothes hanger |
US3234637A (en) * | 1964-09-24 | 1966-02-15 | Slide O Matic Corp | Method and apparatus for the assembly of slide fasteners |
GB2005762A (en) * | 1977-10-06 | 1979-04-25 | Yoshida Kogyo Kk | Apparatus for automatically applying top end stops to a sliding clasp fastener chain |
FR2409719A1 (en) * | 1977-11-25 | 1979-06-22 | Yoshida Kogyo Kk | PROCESS AND APPARATUS FOR FIXING UPPER STOPS TO A SLIP CHAIN |
FR2413305A1 (en) * | 1977-12-30 | 1979-07-27 | Yoshida Kogyo Kk | DEVICE FOR SPREADING A PAIR OF RIBBONS FROM ONE ANOTHER |
GB2022684A (en) * | 1978-05-02 | 1979-12-19 | Yoshida Kogyo Kk | Apparatus for applying end stops to sliding clasp fasteners |
FR2449419A1 (en) * | 1979-02-24 | 1980-09-19 | Yoshida Kogyo Kk | APPARATUS FOR APPLYING PARTS OF A REINFORCEMENT FILM TO A PAIR OF ZIPPER HANGING STRAPS |
EP0030707A1 (en) * | 1979-12-14 | 1981-06-24 | Yoshida Kogyo K.K. | Apparatus for attaching sliders and top end stops for slide fasteners |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0161647A2 (en) * | 1984-05-18 | 1985-11-21 | Yoshida Kogyo K.K. | Apparatus for attaching boxes to slide fasteners with separable box and pin of synthetic resin |
EP0161647A3 (en) * | 1984-05-18 | 1988-09-28 | Yoshida Kogyo K.K. | Apparatus for attaching boxes to slide fasteners with separable box and pin of synthetic resin |
CN101731797B (en) * | 2008-11-27 | 2012-05-23 | Ykk株式会社 | Zipper teeth chain continuous making machine |
AT13288U1 (en) * | 2011-04-29 | 2013-10-15 | Coats Opti Germany Gmbh | Finishing cap for making dividable zippers |
Also Published As
Publication number | Publication date |
---|---|
GB2095325B (en) | 1985-01-09 |
HK67788A (en) | 1988-09-09 |
EP0061196B1 (en) | 1985-06-19 |
GB2095325A (en) | 1982-09-29 |
DE3264224D1 (en) | 1985-07-25 |
CA1198583A (en) | 1985-12-31 |
JPS57156703A (en) | 1982-09-28 |
ES8301609A1 (en) | 1983-02-01 |
KR840001334B1 (en) | 1984-09-19 |
AU8160082A (en) | 1982-09-30 |
US4433478A (en) | 1984-02-28 |
ES510679A0 (en) | 1983-02-01 |
KR830008644A (en) | 1983-12-14 |
BR8201675A (en) | 1983-02-16 |
MY8700433A (en) | 1987-12-31 |
DE61196T1 (en) | 1983-05-26 |
AU531628B2 (en) | 1983-09-01 |
JPS5951818B2 (en) | 1984-12-15 |
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